Fish maw require pre-soaking before cooking.
It is best to soak overnight (8-12)hours until it soften. Pre-cooking will help to soften the fish maw even more however this is optional. Pre-cooking involves soaking the fish maw in boiled water and letting it cool over time.
Fish maw cubes are best suited for cooking stews or soup. Add the fish maw into your soup and simmer for 1-2 hours. Avoid using hot water for soaking or cooking with strong heat in order to shorten the processing time. This will lead to loss of fish maw’s gel content.